Predictability of the Ability to Perform an Emergency Stop

Predictability of the Ability to Perform an Emergency Stop in Knee Osteoarthritis and Patients With Total Knee Arthroplasty

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02175160

Enrollment

Registered

2014-06-26

Start date

2014-07-31

Completion date

2015-06-30

Last updated

2016-02-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Osteoarthritis, Total Knee Arthroplasty

Keywords

Driver reaction time

Brief summary

Several studies exist on patient performance in drive simulators especially around and after surgery. Recommendations concerning the ability to drive preoperatively are based on these studies, which generated their data using drive simulators. However, in all the datasets driving performance remains highly individual. Since a drive simulator is not readily available in normal general practitioner surgeries it would be helpful to have convenient clinical tests to evaluate a patients individual ability to perform an emergency stop. This study aims at evaluating different possibilities how such performance might be predicted. Patients with knee osteoarthritis and patients who have received total knee arthroplasty are tested clinically and their results are compared with the gold standard experiment - a drive simulator.

Interventions

OTHERBraking and functionality

Study design

Allocation

NON_RANDOMIZED

Intervention model

SINGLE_GROUP

Primary purpose

DIAGNOSTIC

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to 85 Years

Healthy volunteers

Yes

Inclusion criteria

* 18-85 y * valid driving license * male and female * right or left knee Osteoarthritis, Total knee arthroplasty right or left knee * capability to walk with or without a walking stick

Exclusion criteria

* myocardial infarction/Apoplexia \< 6 months * Total knee arthroplasty \<5 weeks * New York Heart Association 3/4 * lacking drivers' license * peripheric sensomotor deficit \<3/5 British Medical Research Council * new fracture of the lower extremity or spine * systemic or metastasised Cancer * drug intake with centrally acting substances known to affect reaction time (Opioids, e.g. Tramadol, oxycodone, morphine, Tilidin)

Design outcomes

Primary

Measure	Time frame	Description
Correlation of knee functionality and braking performance	Osteoarthritis group: at consultation, Total knee arthroplasty group: more than 5 weeks postoperatively, at consultation	Evaluation of degree of correlation of braking performance (total brake response time) and clinical testing of knee functionality in patients with right knee osteoarthritis or total knee arthroplasty. One time point of evaluation for each participant.

Countries

Germany

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026